Jonathan haley



ffir.

. @teiten tatre stmt IMPROVEMENTS IN GLASS-WARE PRESSES.

alle flgttxrle aferra tu in tlgrse ttttens @that mit making put nf tige same.

TO ALL WI-IOM IT MAY CONCERN:

Be it known that I, JONATHAN HALEY, of Cambridge, in the county of Middlesex, and State of Massachusetts, have invented a new and useful Improvement inGlass-Ware Presses; and I do herehydcclare that the following, taken in connection with the drawings which accompany and form part of this speciiication, is a description of my invention suiicient to enable those skilled in the art to practise it.

v In pressing glass-ware it is an object to have the press operate quickly as well as with a power which varies throughout the movement of the parts which operate directly on the'mould, the p'ower of movement increasing from the commencement to theend of the pressing motion. i

To obtain the object of the first part of my invention, l so construct the press that the bed on which the mould rests moves toward and from the plunger at the same time that the plunger moves toward and from the bed, and it is in this that the first part of my invention consists. i

To obtain the object of the second part of my invention, I so connect the movable plunger and the movable bed with cranks that said cranks are substantially in a horizontal position when the bed and plunger are at their greatest distance apart, and so that said cranks shall approach a vertical position when the bed und plunger approach each other; and it is in this arrangement of cranks with reference to the movable bed and plunger that the second part of my inventionconsists.

The drawing, which illustrates an embodimentvof my invention, shows a press in which a sect-ion is taken ormone side of the centre, exhibiting the parts in elevation beyond the section. The press contains many of the parts now common in glass-ware presses, and the description will be confined as nearly as possible to the matters connected with my invention.

The frame a is like the common presses, except that it has a provision therein for reception of a movable bed, b, which is guided by projections e which t in ways d, which are secured to the frame a. On the frame a are secured upright pieces c in the ordinary manner, in which are formed ways for the guidance of the crossheadf, in which may be fitted any desired form of plunger. Attached to this cross-head, and passing through a cross-tie, y, uniting the tops of the uprights e, is a piston-rod, h, which has at its top a cross-bar, c', in which there is a provision for adjusting the position of the crosshead and piston-rod, all in a well-known way. In

' connection with this cross-head f, cross-tie g, and cross-bar there is the usual spring-piece 7' and its ordinary attachments, the purpose of which is to rest on the edge of the glass in the mould to prevent it from lbeing withdrawn therefrom when the plunger is being withdrawn. Beneath the frame of the press, and supported therefrom in suitable hangers 7c, is a shaft, l, which is cranked at its centre, said crank being marked m, land the shaft is also provided atV each end with a crank, n. Crank m is connected to and moves the hed b by means of the connecting-rod o, and the cranks n are connected with the cross-bart' by connecting-rods p, the arrangement and connection of the cranks and connecting-rods being such that when the bed is down and the crosshead which carrie-s the plunger is up, then the cranks are substantially horizontal, and such also that when the said cranks are vertical then the'nearest possible approach of the bed to the cross-head is made.

Now, it will be obvious to mechanicians that for any given angular amount of movement of the lever q which turns the cranks and crank'shaft, and with a given power applied to said'lever, a movement will be obtained of the bed and plunger in approaching each other that, while it lessens in velocity, increases in power, which is very desirable in glass-ware presses, as at first but little power is required, which powcris required to increase from the beginning to the end of the impression given. It will also he obvious that as the hed and plunger move toward each other with equal or nearly equal velocities, but about one-half of the time is con- I sumetl in giving an impression that is needed when thc bed is stationaryand the plunger alone is movable.

Inthe drawing, the position ofthe lever shown in red lines is that which it is made to assume in operating the press to move the bed and plunger towards each other, as shown in red lines, the change-of position of the cranks from horizontal to vertical being also shown in red lines.

I claim, a press organized substantially as denscribed, so that the bed and plunger have simultaneous movements relative to each other in approaching and receding.

Also, the combination, as arranged, of the cranks, connecting-rods, movable bed, and plunger, carrying cross-head, for the purpose specified.

'JONATHAN' i HALEY. Witnesses: J. B. Cnosnv,

FRANCIS Gouw. 

